Cyclone dust collecting apparatus for use in vacuum cleaner

Abstract

In a cyclone dust collecting apparatus for use in a vacuum cleaner, mounted in a dust collecting chamber intercommunicating with a motor driving chamber of a cleaner body, for separating contaminants from an air that is drawn in through a suction brush by a centrifugal force, the cyclone dust collecting apparatus includes: a contaminant receptacle having a contaminant chamber and an air discharge chamber, the contaminant chamber and the air discharge chamber respectively having open upper sides and partitioned from each other; a cyclone unit connected to an upper portion of the contaminant receptacle in a manner of covering the contaminant chamber and the air discharge chamber, the cyclone unit having a hole corresponding to, respectively, an incoming air port through which foreign substance laden air flows in, a centrifuging chamber for separating the foreign substances from the air by a centrifugal effect, a contaminant discharge port through which the separated foreign substances are discharged, an outgoing air port through which cleaned air that is left after separation of the foreign substances is discharged out, and the air discharge chamber; and a duct member connected to the upper portion of the cyclone unit, and having an air inflow channel that is connected to the incoming air port and an air outflow channel that interconnects the outgoing air port with the hole.